Home / 142,330.50-196,416.09-85,753.62

Finding the Fourth Proportional to 142,330.50, 196,416.09 and 85,753.62

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Solution

The fourth proportional to 142,330.50, 196,416.09 and 85,753.62 is: 118,340.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,330.50 : 196,416.09 = 85,753.62 : x
  2. Step 2: Convert to fraction form
    142,330.50/196,416.09 = 85,753.62/x
  3. Step 3: Cross multiply
    142,330.50x = 196,416.09 × 85,753.62
  4. Step 4: Simplify right side
    142,330.50x = 16,843,390,743.75
  5. Step 5: Solve for x
    x = 16,843,390,743.75/142,330.50
  6. Step 6: Final answer
    x = 118,340.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.